The inside of your cheek or lip is gently scraped with the help of a clean toothpick and the end of the toothpick is dabbed in the middle of a glass side . A drop of methylene blur is placed on the side and covered with a cover slip Now the side is observed under a microscope. Find out the one from the following which can NEVER be seen .
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microorganisms
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CELL WALL.
- Scraped your check or lip with the help of a clean toothpick.
- Then the end of the toothpick is dabbed in the middle of a glass side.
- After that take a drop of methylene blue is placed on the side and covered with a coverslip.
- Now the side is observed under a microscope.
- You find out the nucleus, cytoplasm, cell membrane. But you do not find the cell.
- Because we know cell wall is absent in humans cell. cell wall present in plants cell. It is made up of cellulose. hence in humans, there is no need of a cell wall.
- So when you observe in the microscope, cell walls are never is seen.
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